au1000_eth: remove useless check
The lifespan of the device covers the request_irq .. free_irq interval.
The cast of a void * pointer is not needed either.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
index 3634b5f..7023d77 100644
--- a/drivers/net/au1000_eth.c
+++ b/drivers/net/au1000_eth.c
@@ -1239,12 +1239,7 @@
*/
static irqreturn_t au1000_interrupt(int irq, void *dev_id)
{
- struct net_device *dev = (struct net_device *) dev_id;
-
- if (dev == NULL) {
- printk(KERN_ERR "%s: isr: null dev ptr\n", dev->name);
- return IRQ_RETVAL(1);
- }
+ struct net_device *dev = dev_id;
/* Handle RX interrupts first to minimize chance of overrun */